Domestic refrigerating apparatus



,ocmv, 1-925- 1.55 223 F. O. CONILL ET AL DOMESTIC REFRIGERATING APPARATUS Filed Aug. 1'7, 192: 3 Sheets-Sheet 1 Mvenfors Fernan O. Con/ll Oct. 27, 1925- F. o. comm. arm.

DOMESTIC REFRIGERATING APPkRATUS Filed Aug. 17, 1922 5 Sheets-Sheet 2 and M/ch de Lezlnler W s Ont. 21,1925 1;s59;223-- F. 0. CONILL ET AL DOMESTIC REFRIGERATING APPARATUS Filed Aug. 17, 1922 s Sheets-Shoat s H1 HI I I H I U a? I a i lnvefifors Frnan O. COhi/I. and r-- Michel d Lez/nler 0 F/Horng.

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noiunsrrcnnrnronns'rme nrrAna'ro- Application filed August 17, 1922. {Serla1 170.682.452.

I To all whom it may concern:

Be it known thatv we, Funnels 0. Conan and MICHEL on Lrizrmnai citizens of the Republic of- Subs and of the Republic of France, respectively, res ding at llc'iarse lles,

France, have invented certain new and usesful Improvements in Domestic Refrigerating Apparatus; oi whichthe following is a specification. p :o This invention relates to an electrically '."d13erated domestic refrigerating apparatus for the production of ice and thoroughly cooled water. The apparatus is simpleand economical in its construction and operaand no poisonous or other objectionable materials are-employed. p

The improved apparatus is based on the known principle according to which water is evaporated, without heating, by the crea tion of'a vecuum in the water container whilst the temperature fallskin proportion with the caaooration'and large volumes of vapors are drawn off and, in condensing, very soon prevent the operation of the vacuum'pump. .This objection has hereto- 'fore been met by absorbing the vapors. by sulphuric acid contained ina large receptacle and thoroughly agitated during the operation. As the sulphuric acid absorbs 0 great quantities of water, however, it is soon rendered unserviceable and must be replaced, thus causing considerable expense and necessitating a very dangerous operation that only skilled persons can perform.

In the apparatus [according tothe present invention the vapors produced by the evaporation are absorbed by a substance that requires no replacement, and when the absorbing capacity of this substance falls the 40 restablishment of the full absorbing capacity may be eifected by means are movable electric heating resistance which causes sufiicient heat to effect the evaporation of the water vapors absorbed by the material so that the apparatus may conveniently be put in readiness for use Without the necessity of taking away and of replacing the vapor abv sorbing Immaterial, the pump remaining idle d ing this operation. l his resultis obtained with the apparatus illustrated by way of example in the ac companying drawings in which:

Fig. 1 is a front view of the casing enclosing the apparatus. 7

5 Fig. 2 shows on alarger scale a front plates at their proper distance apart.

view and plan view respectively, of the movable electriciheating resistance.

Fig. 3 is a vertical cross section on line 1- 1 of Fig. 4, showingthe-internal parts of the apparatus.

Fig. 4 shows in plan a general view of the apparatus.

Fig. 5 shows the vapor absorbing cha n her and the bottle or container for the water to be cooled, With'parts in section.

Fig. 6 is a perspective view of a slightly modified form of the apparatus in which the reciprocating pump is replaced by a ro-, tary oil pump, the casing of which forms the base of the apparatus.

Throughout the drawings the samerefer- 'ence characters indicate the same or corretenth the revolving speed of the motor.

The shaft D drives'the shaft F: by means of a'chain E, the shaft F revolving at a s eed equal to one half the revolving spec of shaft,D. The shaft F carries the crank connected in' any usual manner with the piston of the "oil pump G so as to avoid dead spaces, the .pump being also sup lied with the usual back pressure, suction an do, livery valves. The suction pipe H connects the pump G with the receptacle or cham: her I in which the vacuum is to-be created. said chamber I being connected by means. of a pipe J with the bottle K containing the water to be cooled.

The chamber I contains a set of plates L provided each with retaining rims of galvanized iron or other suitable materiahthe plates L being superposed and each of them 9 being covered by a perforated sheet metal lid M. These sheets M are provided with abutrrients and clamps serving to ensure the centering of the plates L and to keep said I The said plates L carry silicagel (colloidal silex), but this silicagel may be replaced by face or magnesium chloride.

The end of the pipe J connected to the i bottle K is formed with a rubber pipe N which fits into the mouth of the bottle K (Fig. 5), so as to avoid leakages;.and the bottle K- is mounted on a movable base carrying a'thrcaded shaft which may be rotated to ensure a tight gripping on the bottle or to release the rubber pipe N from the bottle mouth. v

In the lowerpart ot' the chamber I the tube O is soldered, the diameter of this tube being in proportion with the capacity of the chamber I, and a short length 0 of the tube protrudes downwards and acts as a guide for an electric heating resistance I (F g. 3}

which is adapted to slide vertically within -the tube'O; toggle links it being provided to allow this latter movement whilst a tension spring S (Fig. 2) eiisuresand assists the downward movement of the heating resistance if. v

' This electric heating device works in the following Way: I

When it is desired to, dry out the vapor absorbing. substance the. pump is left idle.

and the pivoted arm 'l is lowered by hand and. towards the end of its downwardmovement the tree extremity the-roof comes in contact with the spring contacts Q, two in number; one of these contacts being connected to the electric feed line; and the end portion of lever 'l is made of conducting material and thus allows the current to flow to the other spring contact .Which'is con nectcd to the heating resistance. In its downward movement the ,arm 'I lifts the lever V. (Fig. 2) fixed on the shaftU; and

I r the free end of lever V'is connected to the toggle linltslt carrying the resistance P so that this .movement raises the resistance Within the tube O. The resistance is re-- tained in this raised position by the engage merit of the free end of the rod T under the longer arm of the spring controlled lever Z. The electric current flows through the re-- 'sistance, and produces the heat which diffused in the interior of the chamber I and causes the evaporation of the water ab.- sorbed by the colloidal silex, zinc chloride or other suitable substance.

At the outside oi? the chamber I and in close proximity thereto a vertical zinc rod X is provided, said zinc rod receiving the radiated heat of tlie'chauiber. This rod is fixed at one its extremities so that its e: pansion due to the heat of the chamber disf laces the other end which is provided with the adpisting screw Y and bears upon the shorter arm of the aforesaid lever Z causing this lever to swing through an angle suflicient -to cause the disengagement of the longer arm of the lever-Z from above the rod T, which latter then swings rapidly upward under the influence of the weight of the-heating resistance P and-of the tension of Said spring and, in this movement the ssaaes electric connection between the two spring contacts Q is interrupted so that the resistance P is allowed to cool after being auto matically withdrawn out of the tube 0.

A thin metal sheet, conveniently bent and perforated carries the resistance control mechanism; a stop piece aand the spring 6 determine the position of the control'lever Z which magnifies the elongation of the zinc rod X.

So asnot to complicate the drawings the electric connections are omitted; they are mouth of the bottle by rotating the threaded shaft beneath the bottle. The pump G is then started and the water contained in the bottle K is cooled short time. I

This operation can. be repeated again and again until it becomesnecessary to restore the absorbing material to its original condition. .FOI' this purpose the heating resistance is ut into operation by depressingthe arm l and the apparatus is left to itself, that is to say, no wateris cooled.

When the required temperature is attained and all the absorbed water is evaporated to freezing point in a very fi-omthe material in the chamber I the automatic device cuts oil the current and' withdraws the' resistance 1?; the apparatus is then again ready for operation and the" number of successive cycles ot'operations is unlimited.

It is understood that the. apparatus may be used in all cases in which a solution in water of a substance not dissociating at a temperature of 0 is to be concentrated.

1. A domestic refrigerating apparatus for the'production of ice and thoroughly cooled water, comprising a vertical cylindrical vacuum chamber provided with a plurality of coaxially disposed and superposed plate slianed receptacles containing permanently solid water vapor absorbing material, a vacuumpump tor creating a vacuum in the said chamber. a uni drivin gears a bottle con-,

taining the water to be cooled, means to support and tightly connect the said bottle with the said vacuum chamber, an electric heating element for heating the chamber and thus drying the vapor absorbingmaterial contained therein, and means for automatically arresting the drying operation.

A domestic refrigeratingapparatus'for;

I sting a vacuum 10 theyacuum chamber, I with the chambenand means for automati- 5 grater, oompri sin ;manently solid .rapor absorbing material within said chamber, a, bottle for the water to be cooled, a conuection'between the chem cally arresting the drying operat1on.-

3. A domestic refrigerat ng apparatusfor the production of ice and thoroug y l d a vacuum chamber; a

bottle connectedto the Y heeting resistance. toggle links connected to the lower extrema -'ity".'of the resistance,

chamber, vacuum pump mechanism connected to'the container,

for dry1ng said chamber,

.. a hand operated for controlling the operation of the said toggles and closingthe electric circuit of theresistance when in its tainingthe resistance inits lifted position whilst 'the resistance ismoved downwards asso'on as the arm swin s upwards.

' afiix our signa- In testimony hereo we tures.

-. FERNAN 0. coNI'LL.

MICHEL DE LEZINIER.

a movable electricdown position and. re- 

